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WHUT (Howard University Television) 3
Search Results 0 to 8 of about 9 (some duplicates have been removed)
Feb 13, 2013 8:00am PST
what chapter are we gonna talk about today, gang? what's it? what is it? begins with e. energy. how many people feel energy? how many people wish they had more? we'll be talking about such thing now. but before we talk about energy, i wanna talk about something that is somewhat related. we talked before about the idea of momentum. remember momentum? momentum is inertia in motion. and how do you get something moving if it's not moving? how do you change the momentum of something? you push on it, and you provide what's called an impulse. impulse, right? impulse is not only force. it's not how hard you push only that will tell you how much momentum change you'll get. it's how long you push. and we talked about how long in terms of time, didn't we? we said force multiplied by time would be numerically equal to. you multiply the force that you exert on something, huh? multiply it by the time that you exert on something, you get a numerical quantity. and that quantity is exactly equal to, not the momentum, but the change in momentum that you produce by pushing, huh? and so we talked about
Feb 14, 2013 6:00pm EST
of climate change, and speed the transition to more sustainable sources of energy. >> we go now to washington, d.c., where we're joined by two other protesters who were arrested yesterday outside the white house. michael brune is executive director of this year club. his most recent book is called, "coming clean: breaking america's addiction to oil and coal." and we're joined by daryl hannah, the actress and activist who previously was arrested in texas in october for protesting the keystone xl pipeline. we welcome you both to "democracy now!" michael brune, this is historic for your organization. in his 120-year history, you are the first leader of the organization to get arrested in civil disobedience. why? >> first, thank you for having me on the show. it may be surprising that an organization like the sierra club that has been around for so long and a part of so many important fights that we have civil disobedience. but we look at the tar sands pipeline project and it is a boondoggle, such a climate disaster that we realized we have to use every single tool of democracy in order to fight
Feb 12, 2013 8:00am PST
. you're tired, you get energy, ba-bam, you're hitting that bag, hitting bag. and you're saying, "--i hit this bag all day long, tirelessly. "okay, i'm in shape. "and all i gotta do is nine minutes, friday night? whoo, no problem." and friday night come. and at the end of the first three minutes, you go back to your corner and-- [makes panting] --you are tired. and you can't understand why, because in the gym, you can hit the bag all day long. and first three minutes, boom. what's going on? at the time i thought it was an audience thing, that you're more tense 'cause all these people are looking at you. and that was my feeling. and my thing was then, well, pretend i'm not there and just do the best you can, okay? psych yourself up. and later on when i get into physics, i say, "hey, son of a gun, i know what's going on." do you guys see what's going on? when you're in a gym, you hit it bag with-- boom. you put a lot of momentum-- crunch. that momentum stops. what stops it? the bag. the bag. the bag provides the impulse to stop the momentum of the punch. yes. now, opening night comes an
Feb 13, 2013 6:00pm EST
of energy. it has been two months since newtown. i know this is not the first time this country has debated how to reduce them violence, but this time is different. overwhelming majorities of americans, american that believe in the second amendment, have come together around common- sense reform. >> president obama also called on congress to raise the federal wage and toation. in afghanistan, obama announced his plan to end the longest war in u.s. history by withdrawing half of the forces by the end of the year. >> our forces will move into a support role bought at can forces take the lead. tonight, i can announce over the next year another 34,000 american troops will come home from afghanistan. this straw that will continue. by the end of next year, our war in afghanistan will be over. >> we will have more from the state of the union address and reactions after the headlines. the u.s. airstrike in afghanistan have killed 10 civilians. the strike hit a suspected taliban hideouts. most of the dead were women and children. california police say they believe former los angeles police officer c
Feb 14, 2013 8:00am PST
, the torques will be the same and the kids get balanced. this is different than the equation we used for energy although it looks the same. and when we talk about work, is force time distance? but in that case, the distance was always the distance along the direction of the force. in this case, for torques it's always the distance perpendicular to the force. see that? here is a leverage distance. in other words the distance the force moves. so some people get confused and say, wait a minute, i've seen that equation before, but different distance. we can say, this is the perpendicular distance or the perpendicular component of force along the distance, either way. but i think we all know about this. let's suppose this kid goes home and someone takes his place. and it's a great, big, heavy set kid. can a heavy set kid play with a little skinny kid on the same seesaw? yeah. and you all know from experience, yes. a heavy kid can do it. and what the heavy kid does-- the heavy kid sits in here and the kids can still play. the kids can still play because who is providing the larger torque? the heavy k
Feb 15, 2013 8:00am PST
energy. it would provide rebates to consumers to offset potential price hikes by fossil fuel companies. senator sanders and boxer touted the bill at a news conference wednesday. what's the major focus of this legislation is a price on carbon and methane emissions. the fee on the larger fossil fuel polluters in effect last than 3000 entities nationwide, but covers 85% of the u.s. greenhouse gas emissions according to congressional research service. this legislation in the fossil fuel subsidies and protection committed these by requiring that fracking operations comply with the say tricking water act and disclose the chemicals they use. >> the proceeds will create jobs, many jobs, and the rest of the proceeds will reduce the deficit. so the sanders-boxer bill reduces carbon pollution and climate disruption while creating jobs and reducing the deficit. if ever there was a win/win/win, this bill is a win/win/win. >> the largest climate change rally ever is expected in the capital on sunday. in the u.s. house, a team of bi- partisan lawmakers has introduced a bill to prohibit the use of arm
Feb 14, 2013 3:00pm PST
, california, with the same energy in identifying the problems there and creating a community, and giving the kids alternatives to violent behavior and making them understand that being-- that violence is not an ok way of life. and i think that's where the future is. when the medical community begins to deal with an epidemic, it looks for ways to treat those who have been affected and for ways to prevent the disease from spreading. astrid heger: there's two groups of children that we certainly see here and that we're treating. one group are the children who are direct victims of an assault against them, then tre's anothebig gr of kids th we're seeing he in thiprogram and that is the children that are exposed to violence. and we are-- regardless of whether they've ever been hit, whatever, we are engaged in a preventive program with them, immediately when they've been identified that they're in a violent environment. so if their mother's been hit-- we have a number of children here who've witnessed their siblings killed by caretakers, et cetera-- all of those children get an extensive preve
Search Results 0 to 8 of about 9 (some duplicates have been removed)